SIMBAD references

1999A&A...352L..31H - Astronomy and Astrophysics, volume 352, L31-35 (1999/12-1)

A spectroscopic study of Be stars in the SMC cluster NGC 330.

HUMMEL W., SZEIFERT T., GAESSLER W., MUSCHIELOK B., SEIFERT W., APPENZELLER I. and RUPPRECHT G.

Abstract (from CDS):

We present a spectroscopic study of early type emission line stars in the field of the young open SMC cluster NGC 330 which have been identified as Be stars by CCD imaging photometry by Grebel et al. (1992A&A...254L...5G). 18 of the 20 program stars investigated can be confirmed to show Balmer emission lines superimposed on an early type spectrum. Two new Be stars in the field of NGC 330 have been detected. Hα emission equivalent width, FWHM and profile shapes (as far as resolved) do not differ from galactic Be stars, hence we suggest that rotation axis of Be stars in NGC 330 are not aligned, rather they are distributed randomly. Quantitative spectral analysis for Be40 and Be59 results in Teff=18000±1500K, logg=3.3±0.2 and Teff=17000±1500K, logg=3.1±0.2 respectively.

Abstract Copyright:

Journal keyword(s): line: formation - line: profiles - radiative transfer - stars: circumstellar matter - stars: emission-line, Be

Nomenclature: Table 2: Cl* NGC 330 G NNN N=22 among N>115. Table 2: Cl* NGC 330 HSG FN (Nos F1-F2).

Simbad objects: 25

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